Silica Brick for Coke Oven and Carbon Calciner

Product Description:

Specifications

Item brand
Bottom and other part
Wall brick brick
Sio2% >= 94
0. 2mpa rul c >= 1650
Linear c

Item	 brandBottom and other partWall brick brickSio2% >=	 940. 2mpa rul c >=	 1650Linear changeAfter re-heating% 1450c x2h <=	 0 /  + 0. 2A. p. % <=	 22	 24C. C. S. mpa >= 30	 25B. D. g / ccm >= 2. 34	 2. 35ThermalDilatation% 1000c <= 1. 28	 1. 30

Performance
Item		Unit	95 Al2O3	96 Al2O3	99 Al2O3
Physical Characteristics	Bulk density	g/cm3	3.6	3.6	3.9
	Water absorption	%	0	0	0
Mechanical Characteristics	Flexural strength	Mpa	320	340	360
	Hardness Vickers	Gpa	12.2	13.5	15.6
	Elastic modulus	Gpa	280	320	370
	Poisson’s ratio	-	0.22	0.23	0.23
Thermal Characteristics	Linear expansion coefficient	(200C-5000C) 10-6/0C	7.1	7.2	8
	Thermal conductivity	w/(m.k)	16	24	32
	Specific Heat	*10-3J/(kg*K)	0.78	0.78	0.9
Electrical Characteristics	Dielectric constant (1MHZ)	-	9	9.4	9.9
	Dielectric loss angle	*10-4	15	5	1
	Dielectric strength	*106V/m	12	15	15
Processing technology
Process range (mm)
Outside Diameter	1---300
Inside Diameter	0.5---300
Length	0.5---1200
Accuracy of working (mm)
Perpendicularity	0.01
Concentricity	0.01
Roundness	0.005
Straightness	0.005
Parallelism	0.01
Planeness	0.005
Roughness	0.05
Fit clearance	0.005